Microsoft says users running Windows preview builds will be able to upgrade to Windows 10 for free. Bing's video new page puts a much stronger emphasis on music videos search. Twitter has started rolling out product pages that allows users to discover and purchase items within the service. Apple has invented a material that hides your iPhone's antenna lines. Taylor Swift tells Apple:"We don’t ask you for free iPhone's, don’t ask us to provide you with our music for no compensation."